Implementation of displacement-dependent Barton-Bandis rock joint model into discontinuous deformation analysis |
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| Institution: | 1. Dept. of Earth Sciences, University of New Brunswick, Fredericton, NB E3B 5A3, Canada;2. Dept. of Geological Sciences and Geological Engineering, Queen''s University, Kingston, ON K7L 3N6, Canada |
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| Abstract: | Discontinuous deformation analysis (DDA) has been widely applied in analyzing various rock engineering problems. As the joint strength play a vital role in the stability of jointed rock mass, this paper makes an attempt to implement the Barton-Bandis rock joint model into the DDA code to replace the original Mohr-Coulomb joint model. The developed Barton-Bandis joint model which is characterized by displacement-dependent shear strength is verified by experimental direct shear tests. An example of a block sliding on an inclined plane is used to demonstrate the capacity of the DDA-BB model in predicting the dynamic motion behavior of sliding blocks. |
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| Keywords: | Discontinuous deformation analysis Rock joint Displacement-dependent shear strength Direct shear tests Barton-Bandis model |
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